【摘要】 本文以古田西瓜州大桥——高墩箱形拱桥为工程背景,通过加固前后的合理试验,并结合修正的有模元模型进行结构分析,对加固前后的静力及动力特性进行对比分析,主要从外观、挠度、应变、自振频率、稳定性及叠合拱的整体工作性能等几个方面对加固效果综合分析。更多还原

【Abstract】 Based on Xiguazhou bridge located on Gutian country,Fujian province,which is a box arch bridge with high piers,analysis on the change of the static and dynamic properity through the bridge strengthening,is conducted by reasonable load tests and computing of the updaeted finite element modal.And the parper carries out the comprehensive evaluation of the reinforcing effect,from the improvement on appearance、defection、strain、vibration frequency and entirely working performance of the composite arch.更多还原